Duerkopp Adler 669 Operating Instruction

669

Spezialnähmaschine

Betriebsanleitung

Instruction manual

Postfach 17 03 51, D-33703 Bielefeld • Potsdamer Straße 190, D-33719 Bielefeld Telefon +49 (0) 521 / 9 25-00 • Telefax +49 (0) 521 / 9 25 24 35 • www.duerkopp-adler.com

Ausgabe / Edition: Änderungsindex Teile-Nr./Part.-No.:

12/2008 Rev. index: 00.0 Printed in Federal Republic of Germany 0791 669741

Eigentum der Dürkopp Adler AG und urheberrechtlich geschützt. Jede, auch auszugsweise Wiederverwendung dieser Inhalte ist ohne vorheriges schriftliches Einverständnis der Dürkopp Adler AG verboten.

Property of Dürkopp Adler AG and copyrighted. Reproduction or publication of the content in any manner, even in extracts, without prior written permission of Dürkopp Adler AG, is prohibited.

Dürkopp Adler AG - 2008

Foreword

This instruction manual is intended to help the user to become familiar with the machine and take advantage of its application possibilities in accordance with the recommendations.

The instruction manual contains important information on how to operate the machine securely, properly and economically. Observation of the instructions eliminates danger, reduces costs for repair and down-times, and increases the reliability and life of the machine.

The instruction manual is intended to complement existing national accident prevention and environment protection regulations.

The instruction manual must always be available at the machine/sewing unit.

The instruction manual must be read and applied by any person that is authorized to work on the machine/sewing unit. This means:

– Operation, including equipping, troubleshooting during the work

cycle, removing of fabric waste,

– Service (maintenance, inspection, repair) and/or

– Transport.

The user also has to assure that only authorized personnel work on the machine.

The user is obliged to check the machine at least once per shift for apparent damages and to immediatly report any changes (including the performance in service), which impair the safety.

The user company must ensure that the machine is only operated in perfect working order.

Never remove or disable any safety devices.

If safety devices need to be removed for equipping, repairing or maintaining, the safety devices must be remounted directly after completion of the maintenance and repair work.

Unauthorized modification of the machine rules out liability of the manufacturer for damage resulting from this.

Observe all safety and danger recommendations on the machine/unit! The yellow-and-black striped surfaces designate permanend danger areas, eg danger of squashing, cutting, shearing or collision.

Besides the recommendations in this instruction manual also observe the general safety and accident prevention regulations!

General safety instructions

The non-observance of the following safety instructions can cause bodily injuries or damages to the machine.

1. The machine must only be commissioned in full knowledge of the

2. Before putting into service also read the safety rules and

3. The machine must be used only for the purpose intended. Use of

4. When gauge parts are exchanged (e.g. needle, presser foot, needle

5. Daily servicing work must be carried out only by appropriately

instruction book and operated by persons with appropriate training.

instructions of the motor supplier.

the machine without the safety devices is not permitted. Observe all the relevant safety regulations.

plate, feed dog and bobbin) when threading, when the workplace is left, and during service work, the machine must be disconnected from the mains by switching off the master switch or disconnecting the mains plug.

trained persons.

6. Repairs, conversion and special maintenance work must only be carried out by technicians or persons with appropriate training.

7. For service or repair work on pneumatic systems, disconnect the machine from the compressed air supply system (max. 7-10 bar). Before disconnecting, reduce the pressure of the maintenance unit. Exceptions to this are only adjustments and functions checks made by appropriately trained technicians.

8. Work on the electrical equipment must be carried out only by electricians or appropriately trained persons.

9. Work on parts and systems under electric current is not permitted, except as specified in regulations DIN VDE 0105.

10. Conversion or changes to the machine must be authorized by us

and made only in adherence to all safety regulations.

11. For repairs, only replacement parts approved by us must be used.

12. Commissioning of the sewing head is prohibited until such time as

the entire sewing unit is found to comply with EC directives.

13. The line cord should be equipped with a country-specific mains

plug. This work must be carried out by appropriately trained technicians (see paragraph 8).

It is absolutely necessary to respect the safety

instructions marked by these signs.

Danger of bodily injuries !

Please note also the general safety instructions.

Contents Page:

Preface and General Safety Instructions

Part 1: Operating instructions Class 669

(Edition 12/2008)

1. Product Description ............................................ 3

2. Designated Use ............................................... 3

3. Subclasses .................................................. 4

4. Optional Equipment ............................................ 5

5. Technical Data

5.1 Technicaldatasubclasses ......................................... 7

6. Operation

6.1 Threading the needle thread ........................................ 8

6.2 Adjusting the needle thread tension.................................... 9

6.2.1 Function of the main thread tension and the supplementary thread tension

in relation to the sewing-foot lift for subclass 669-180312 ...................... 10

6.2.2 Function of the supplementary thread tension in relation to the stroke adjustment

and the Speedomat for subclass 669-180312 .............................. 11

6.3 Adjusting the needle thread tension.................................... 12

6.4 Turning the supplementary thread tension on and off for subclasses 669-180010

and 669-180112................................................ 12

6.5 Adjusting the thread regulator ....................................... 13

6.6 Winding the bobbin thread ......................................... 14

6.7 Replacing the shuttle bobbin ........................................ 15

6.8 Pre-settingtheshuttlethreadtension................................... 16

6.9 Inserting and replacing the needle .................................... 17

6.10 Raisingthesewingfeet........................................... 18

6.11 Settingthesewingfeetinthehighposition............................... 19

6.12 Sewingfootpressure ............................................ 19

6.13 Sewingfootstroke.............................................. 20

6.14 Adjusting the stitch length.......................................... 22

6.15 Keypadonthemachinearm........................................ 23

Contents Page:

7. Sewing

7.1 SewingwithmachinesusingtheFIRclutchpositioningdrive .................... 24

7.2 Sewing with machines using the Efka DC1550/DA321G positioning drive ............. 25

8. Tilting Back the Machine Head...................................... 28

9. Folding Down the MG 56-2 Stand .................................... 29

10. Maintenance

10.1 Cleaning and checking ........................................... 30

10.2 Oillubrication................................................. 32

1. Product Description

The DÜRKOPP ADLER 669 is a single-needle double lockstitch free-arm sewing machine featuring a lower feed, a needle feed and an alternating foot-upper feed. Depending on the subclass, it can also come with a thread trimmer, second stitch length and automatic bartacking. The maximum stitch length is either 6 mm or 9 mm, depending on the sewing equipment. The needle thickness is between 100 – 150 Nm.

It is equipped with a large horizontal looper hook.

The hook cover has a diameter o f 48 mm.

There is a maximum clearance of 20 mm under the sewing feet

when the feet are raised.

The remaining thread has a length of about 10 mm, depending on

the thread cutting process.

The lower feed can be easily deactivated or converted for other

purposes such as edge work.

A safety clutch prevents the hook from being displaced or damaged

if the thread gets jammed in the shuttle track.

2. Designated Use

The machine features automatic wick lubrication and a viewing

window in the arm for watching the machine and hook lubrication.

All subclasses, excluding those classes without a thread trimmer,

are equipped with a s ix-way button An additional pull-down button, within reach of the operator, can optionally be assigned one of the six different functions.

There is also an integrated bobbin winder.

The class 669 machine is a sewing machine head designed for sewing light to medium-heavy material. Such material is generally made of textile fibres, but it may also be leather. It is used in the clothing industry and for domestic and motor-vehicle upholstery.

This sewing machine can also be used to produce technical seams. In such a case, the operator must assess the possible dangers which may arise (preferably in conjunction with DÜRKOPP ADLER AG). Such applications are relatively unusual and varied so that no single set of criteria can cover them all. The outcome of this assessment may require appropriate safety measures to be taken.

Generally, only dry material may be sewn with this sewing machine head. The material may be no thicker than 10 mm when compressed by the lowered sewing feet. The material should not contain any hard objects. If hard objects are present, the machine must be operated with protective eye wear. We currently do not have such protective eye wear available for delivery.

The seam is produced with textile-fibre sewing thread, with size gauges up to 15/3 NeB (cotton), 15/3 Nm (synthetic) or 15/4 Nm (covered yarn). Before using any other thread, you must assess the dangers associated with their use and take appropriate safety measures when necessary.

3. Subclasses

This sewing machine may be set up and operated only in dry, well-maintained premises. If the sewing machine is used in other premises which are not dry and well-maintained it may be necessary to take further precautions which should be agreed in advance (see EN 60204-31: 1999).

As manufacturers of industrial sewing machines, we proceed on the assumption that personnel who work on our products will have received training at least sufficient to acquaint them with all normal operations and with any hazards which these may involve.

669-180010 Single-needle double lockstitch free-arm sewing

machine with lower feed, needle feed and alternating foot-upper feed.

669-180112 Single-needle double lockstitch free-arm sewing

machine with lower feed, needle feed and alternating foot-upper feed. Also featuring electro-pneumatic thread trimmer, electro-pneumatic seam bartacking, and sewing-foot lift.

669-180312 Single-needle double lockstitch free-arm sewing

machine with lower feed, needle feed and alternating foot-upper feed. Also featuring electro-pneumatic thread trimmer, electro-pneumatic seam bartacking, and sewing-foot lift. Also includes a second stitch length (electro-pneumatic switchable), two lifting heights (electro-pneumatic switchable with knee lever) and an integrated sewing light.

4. Optional Equipment

The following additional equipment is available for the 669.

Order no. Optional equipment Subclasses

9780 000108 WE-8 maintenance unit for additional pneumatic

equipment

0797 003031 Pneumatic connection package. For connection of

stand with maintenance unit. 0867 490010 Operating panel angle bracket 9822 510001 Halogen sewing light for the sewing machine head 9880 867100 Mounting kit for the sewing light 0798 500088 Sewing light transformer 9880 867103 Diode sewing light (one diode) 9880 867102 Integrated sewing light 9850 001089 Power supply for the integrated and diode sewing

light 9850 867001 PCB for oil monitoring 0867 590014 Electro-pneumatic needle cooler, from above 0367 595124 Mechanical sewing-foot lift, with pedal 0867 590354 Pneumatic sewing-foot lift 0867 590464 Manual seam tacking N800 080004 Edge guide, swivelling 9805 791113 USB memory key (flash drive) for data transfer

with Efka DA321G control unit 0659 510030 Distance spacer, for mounting additional

equipment

Stand

669-180010

XXX

Xoo XXX XXX XXX XXX XXo XXo

Xo XX X X oXo XXX XXX

XXX

669-180112

669-180312

MG55 400384 Stand set MG 53-3.

Table plate: 1200 x 550 mm without cut-out MG55 400394 Stand set MG 55-3.

Table plate: 1200 x 550 mm with cut-out MG56 400064 Stand set MG 56-2.

Table plate: 1250 x 600, divided, foldable, for

clutch motors MG56 400074 Stand set MG 56-2.

Table plate: 1250 x 600, divided, foldable, for

DC1550

XXX

o = Standard equipment X = Optional equipment

Further available documents concerning the class 669: 0791 669801 Parts List 0791 669641 Service Instructions

5. Technical Data

Noise level: Workplace-related emission value according to DIN 45635-48-A-1-KL-2:

669-180010 LC = —dB (A)

Stitch length: _ mm Sewing foot stroke: ___ mm Number of stitches: ____ min Sewing material:

669-180112 LC = —dB (A)

Stitch length: _ mm Sewing foot stroke: ___ mm Number of stitches: ____ min Sewing material:

669-180312 LC = —dB (A)

Stitch length: _ mm Sewing foot stroke: ___ mm Number of stitches: ____ min Sewing material:

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5.1 Technical data subclasses

Subclasses

669-180010

Type of stitch Lockstitch 301

Hook type horizontal, large

Number of needles 1

Needle system 134-35

Needle thickness, max. 150

(according to E no.) [Nm]

Max. sewing thread thickness: Needle thread [Nm] 80/3 - 15/3 Bobbin thread [Nm] 80/3 - 20/3

Stitch length [mm] Forwards 9 Reverse 9

Max. stitch count [min-1] 3000 3000 3000

669-180112

669-180312

Stitch count whendelivered 2800 3000 3000

Max. sewing-foot lift [mm] 9

Max. height of lifted sewing feet [mm] 20

Operating pressure [bar] 6

Air consumption per work cycle [NL] 0.7

Dimensions (L x W x H) [mm] 600/ 230/ 470 (with attached Efka DC 1550) (600/ 300/ 470)

Weight [kg] 50 (with attached Efka DC 1550) [kg] (54)

[min

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+ 25 hidden pages

Duerkopp Adler 669 Operating Instruction

Specifications and Main Features

Frequently Asked Questions

User Manual